Sharp xl mp 40 h service manual

Page 1

XL-MP40H

SHARP SERVICE MANUAL

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(Except for u. K.)

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SAVING ENERGY

mm 1-0ka
«WWW 0.9w

PRECAUTIONS FOR USING LEAD-FREE SOLDER

CHAPTER 1. GENERAL DESCRIPTION
[1] SAFETY PRECAUTION FOR SERVICE

MANUAL ....................................................... H
[2] IMPORTANT SERVICE NOTES (FOR U.K.
ONLY) ........................ »1
[3] SPECIFICATIONS ..... 2
[4] NAMES OF PARTS ....................................... 13

CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT.
[2] TEST MODE .......
[3] When the CD does not function

CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE

MAIN PARTS ......
[2] DISASSEMBLY...

CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM ........................................ 4»1

SHARP CORPORATION

CONTENTS

NO. 82518XLMP40H/

MICRO COMPONENT SYSTEM

MODEL XL-MP40H

XL-MP40H Micro Component System consisting of XL-
MP40H (main unit) and CP-MP40H (speaker system).

- In the interests of user-safety the set should be restored to its origi-
nal condition and only parts identical to those specified be used.

- Note for users in U.K.
Recording and playback of any material may require consent which
SHARP is unable to give. Please refer panicularly to the provisions
of Copyright Act 1956, the Dramatic and Musical Performers Pro-
tection Act 1956, the Performers Protection Acts 1963 and 1972
and to any subsequent statutory enactments and orders.

\

..... 5-1
..... 52

CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT .....
[2] VOLTAGE .......................................

CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT

[1] NOTES ON SCHEMATIC DIAGRAM ..... 6-1

[2] TYPES OF TRANSISTOR AND LED ..... 6-1

[3] WIRING SIDE OF PWB/SCHEMATIC DIA-
GRAM ............................................................ 62

CHAPTER 7. OTHERS

[1] FUNCTION TABLE OF IC ..... 7-1

[2] LCD DISPLAY ........................... 7»6

Parts Guide

/

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

Page 1

XL-MP40H

SHARP SERVICE MANUAL

9 0.0
boroo.

§
E

trees
eels
mmm
Erma
Edd

CflMPAcT

cfififiw/

(Except for u. K.)

oIcme Aunln

SAVING ENERGY

mm 1-0ka
«WWW 0.9w

PRECAUTIONS FOR USING LEAD-FREE SOLDER

CHAPTER 1. GENERAL DESCRIPTION
[1] SAFETY PRECAUTION FOR SERVICE

MANUAL ....................................................... H
[2] IMPORTANT SERVICE NOTES (FOR U.K.
ONLY) ........................ »1
[3] SPECIFICATIONS ..... 2
[4] NAMES OF PARTS ....................................... 13

CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT.
[2] TEST MODE .......
[3] When the CD does not function

CHAPTER 3. MECHANICAL DESCRIPTION
[1] REMOVING AND REINSTALLING THE

MAIN PARTS ......
[2] DISASSEMBLY...

CHAPTER 4. DIAGRAMS
[1] BLOCK DIAGRAM ........................................ 4»1

SHARP CORPORATION

CONTENTS

NO. 82518XLMP40H/

MICRO COMPONENT SYSTEM

MODEL XL-MP40H

XL-MP40H Micro Component System consisting of XL-
MP40H (main unit) and CP-MP40H (speaker system).

- In the interests of user-safety the set should be restored to its origi-
nal condition and only parts identical to those specified be used.

- Note for users in U.K.
Recording and playback of any material may require consent which
SHARP is unable to give. Please refer panicularly to the provisions
of Copyright Act 1956, the Dramatic and Musical Performers Pro-
tection Act 1956, the Performers Protection Acts 1963 and 1972
and to any subsequent statutory enactments and orders.

\

..... 5-1
..... 52

CHAPTER 5. CIRCUIT DESCRIPTION
[1] WAVEFORMS OF CD CIRCUIT .....
[2] VOLTAGE .......................................

CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS
LAYOUT

[1] NOTES ON SCHEMATIC DIAGRAM ..... 6-1

[2] TYPES OF TRANSISTOR AND LED ..... 6-1

[3] WIRING SIDE OF PWB/SCHEMATIC DIA-
GRAM ............................................................ 62

CHAPTER 7. OTHERS

[1] FUNCTION TABLE OF IC ..... 7-1

[2] LCD DISPLAY ........................... 7»6

Parts Guide

/

This document has been published to be used
for after sales service only.
The contents are subject to change without notice.

Page 2

XL-MP4OH
PRECAUTIONS FOR USING LEAD-FREE SOLDER

1. Employing lead-free solder
"MA|N,D|SPLAY,LED,POWER,SWITCH,JACK PWB," of this model employs lead-free solder. The LF symbol indicates
lead-free solder, and is attached on the PWB and service manuals. The alphabetical characterfollowing LF shows the
type of lead-free solder.

Example: BE 3

S n -Ag -C U Indicates lead-free solder of tin, silver and copper,

2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder
may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a
dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station
or service branch in your area.

3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C,
and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of
time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded,
remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the
power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use
of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

Be careful when replacing parts with polarity indication on the PWB silk.

Lead-free wire solder for servicing

Ref No. Parts No. Description
PWB-A1 DCEKKV5128J03 MAIN
PWB-A2 DCEKKV5128J03 DISPLAY
PWB-A3 DCEKKV51ZSJO3 POWER
PWB-A4 DCEKKV5128J03 LED
PWB-A5 DCEKKV5128J03 JACK
PWB-A6 DCEKKV5128J03 SWITCH

Page 2

XL-MP4OH
PRECAUTIONS FOR USING LEAD-FREE SOLDER

1. Employing lead-free solder
"MA|N,D|SPLAY,LED,POWER,SWITCH,JACK PWB," of this model employs lead-free solder. The LF symbol indicates
lead-free solder, and is attached on the PWB and service manuals. The alphabetical characterfollowing LF shows the
type of lead-free solder.

Example: BE 3

S n -Ag -C U Indicates lead-free solder of tin, silver and copper,

2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder
may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 °C, we recommend you to use a
dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station
or service branch in your area.

3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 °C which is higher than the conventional lead solder by 40 °C,
and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of
time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded,
remove the bit from the PWB as soon as you confirm the steady soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the
power of the bit as required.
If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use
of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper.

Be careful when replacing parts with polarity indication on the PWB silk.

Lead-free wire solder for servicing

Ref No. Parts No. Description
PWB-A1 DCEKKV5128J03 MAIN
PWB-A2 DCEKKV5128J03 DISPLAY
PWB-A3 DCEKKV51ZSJO3 POWER
PWB-A4 DCEKKV5128J03 LED
PWB-A5 DCEKKV5128J03 JACK
PWB-A6 DCEKKV5128J03 SWITCH